| Tests | Characteristics/Reactions |
| Cultural media |
|
| Nutrient agar | Small, circular and colourless |
| MacConkey agar | Small, smooth and colourless |
| Brillant green agar | Circular, pinkish, lactose-non fermenting |
| Salmonella-Shigella agar | Smooth, opaque, translucent. Colourless and round with black center (varies) |
| Motility |
|
| Hanging drop method | Non motile |
| Gram staining | Gram negative |
| Cell shape | Short rod |
| Colour | Pinkish |
| Spore | None |
| Capsule | None |